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Setting Baud Rates

Faxing over VoIP

VoIP Mechanic recognizes that not every fax machine comes with implicit
easy to find instructions for slowing down the BAUD rate to 9600.
Adding to this problem is that most recent fax machines transmit at higher speeds
than 9600, so we have started to list some fax model's instructions to lower the
transmission speed to a baud rate of 9600. We recognize that these
instructions can be excluded from many of the manufacturers manuals and can also
be difficult to locate from any source, even when calling your fax
manufacturers support personnel. So to try to alleviate some of the VoIP frustration
in achieving this important setting, we have decided to try to list some
instructions to lower the baud rate to 9600 for some fax models.

G711 or Non-Compressed Codec

First make sure that your VoIP connection for you
line that you fax on is set to G711. This is a non-compressed codec.
G729 uses compression and will make the fax fail. Some providers have a
"Bandwidth Saver" setting. This would be a compressed codec. Make sure this is
Not enabled. If you do not have access to this setting call your provider and
make sure your connection is set for G711.

Why you need to lower the baud rate to 9600.

Faxing over VoIP can present certain challenges
which require a slower transmission speed, so that most of the data get to it's
destination. Packet loss, jitter, and latency all add up to
corrupt a fax transmission over VoIP. When a fax machine determines that
data is lost, it will shut down the transmission, even though with some bits of
data lost you would still have a workable document. By slowing down the
transmission speed to 9600, you increase the probability that most of the data
will make the trip.

Lowering the Baud rate on an HP6110

You can set the Baud rate by following these steps:

Press the * and # keys at the same time.

Press 1, then 2, then 3. (Release each
key before pressing the next.)

Select System Configuration, the
select R/W parameters and press Enter.

Press 153 and then Enter. (This parameter is for sending. The parameter for receiving is 159.)

Press 2*, then Enter. The value should display. (This is the parameter for V.17 9600.-*see below for additional
information)

Next press Cancel repeatedly until
you exit the service menu.

The following instructions may also apply

Press Setup.

Select Advanced Fax Setup and then
press OK.

Next select Fax Speed and then OK.

Select Slow for 9600 or Medium for 14,400. then press OK.

*One of our visitors suggested entering 1, which seemed to have a better
result. This would relate to a Medium setting, so if parameter 2 does not
work, try 2.

Lowering the Baud rate on an HP4110

You can set the Baud rate by following these steps:

Press the * and # keys at the same time.

Press 1, then 2, then 3. (Release
each key before pressing the next.)

Service should now display, press the right arrow button until R/W parameters appears. Then press Enter.

You should see parameter 0.
Press 2, then Enter.

Next press Cancel repeatedly until you
exit the service menu.

Lowering the Baud Rate of an HP4219

Navigate to the Advanced Menu, First Go to Setup, Press 4 for Advanced Fax Setup

Then Select Slow Setting

Save Settings

Lowering the Baud rate on

HP6100xi, HP7410xi and HP PSC2210

You can set the Baud rate by following these steps:

Press the * and # keys at the same time.

Press 1, then 2, then 3. (Release each key
before pressing the next.)

The display should show Service, press
the right arrow button once and System Configuration should display.Press Enter.

important

You may find that many HP Fax machines share similar
instructions. Use "2" for 9600 under "r/w parameters" for both sending and
receiving (153 and 159). By following one of the set of instructions to
the right you should be able to locate this parameter.

HP Parameter numbers :

0 = V.17 14400

1 = V.17 12000

2 = V.17 9600

3 = V.17 7200

4 = V.33 14400

5 = V.33 12000

6 = V.29 9600

7 = V.29 7200

8 = V.29 4800

9 = V.27 4800

10= V.27 2400

26= V.34 33600

Sharp Fax Machines

The following Sharp Fax Machines are set to 9600 Baud rate and will
automatically fail over to a lower Baud rate depending on what other machine's
capabilities are.

UX 510

UX 460

UX P100

UX P115

UX P200

Note: These Sharp fax models do not
have an ECM setting. As they are already set to 9600bps they should
work. Remember to set the resolution to Standard and make sure that
your connection is set to G711, if you are experiencing difficulties with
any of these Sharp Fax models.

Important

Who should keep a regular telephone line for faxing:

If you find that you fall into one of the categories listed below, then it is
recommended that you keep a standard POTS line for faxing, even if just for a
back up source.

You need to keep a regular telephone line anyway for an alarm or a DSL
connection.

A third setting that should also help make faxing over VoIP become more
stable is:

Set the resolution to a standard setting.

Most users send ordinary typed documents which do not require the higher
resolutions that images or pictures or even legal documents might. By
lowering the resolution the amount of data that needs to be transferred is
reduced, helping ease the overall transmission.

Some Panasonic Fax machines include an Overseas Mode
that lowers the Baud rate to 9600 for that transmission.

Try Code #23 Overseas Mode

Unfortunately this setting is only will only be
enacted for the following Fax and would need to be reset before each fax.

information

Some VoIP providers offer an inbound fax solution where their servers take an
incoming fax and then send it to the customer via email in a PDF attachment.
This service works as a great inbound fax solution. Some of the benefits
are:

The fax is sent as a PDF, so is already in an electronic form for easy
storage and easy distribution to others.

The fax can be viewed or downloaded from any location as it is an email.

A distribution list can be set up on Outlook or another email client to
distribute the fax to others.

But, these services are for an inbound fax only and do not solve outbound
faxing. Needless to say, if your VoIP provider offers this service for a
reasonable charge, it may well be worth considering.

Still need help? Try contacting Fax Support
for your Fax machine. For a list of phone numbers [click Here]